. Author manuscript; available in PMC: 2018 Nov 20.

Published in final edited form as: Demogr Res. 2017 Mar 21;36:863–892. doi: 10.4054/DemRes.2017.36.30

Table 1:

Age of sample at data collection points and N at Wave 1 for four birth cohorts

Birth cohort	Age at...	Wave 1 1994	Wave 2 1998	Wave 3 2002	Wave 4 2005	Wave 5 2012	Wave 6 2015	N Wave 1
Birth cohort	Baseline 1983	Wave 1 1994	Wave 2 1998	Wave 3 2002	Wave 4 2005	Wave 5 2012	Wave 6 2015	N Wave 1
1960–1964	19–23	30–34	34–38	38–12	41–15	48–52	51–55	590
1955–1959	24–28	35–39	39–13	43–17	46–50	53–57	56–60	647
1950–1954	29–33	40–14	44–18	48–52	51–55	58–63	61–65	436
1945–1949	34–38	45–19	49–53	53–57	56–60	63–67	66–70	228
1945–1964	19–38	30–9	34–53	38–57	41–60	48–67	51–70	1,901